Determines whether the document can be magnified. This is a parameter of the VAPIM_VIEW message.
#include <kvvapi.h> SendMessage(hWndVAPI, VAPIM_VIEW, VAPIMWP_VIEW_CANMAGNIFY, (LPARAM) (BOOL*) lpbCanMagnify );
| Argument | Description |
|---|---|
hWndVAPI
|
The handle of the VAPI window. |
lpbCanMagnify
|
A pointer to a flag that returns TRUE or FALSE, depending on whether the document can be magnified. |
SendMessage() returns TRUE if the call succeeds, in which case lpbCanMagnify returns TRUE or FALSE.SendMessage() returns FALSE if the call (for example, if there are invalid arguments or if no document is open), in which case lpbCanMagnify is undefined.Use this message to control the state of a Magnify menu item or toolbar button.
|
|